import com.alibaba.fastjson.JSONObject;

public class AliJsonObject {

    public static void main(String[] args) {
        JSONObject jsonObject = null;
        try {
            jsonObject = JSONObject.parseObject("{\"msg\":null,\"succ\":asd,\"value\":\"{}\"}");
            jsonObject.put("", "");
            Boolean succ = jsonObject.getBoolean("succ");

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}
